Porsche Mission E Concept - 2015 Frankfurt Auto Show live photos Enlarge Photo Porsche is getting its dealerships on board with selling electric cars, in preparation for its upcoming Mission E electric sedan, by insisting that each of the company's 189 U.S dealerships install fast charger with enough juice to charge the car's big, 300-mile battery to substantially full in just over 20 minutes. Presumably during this time, the Mission E driver is perusing leather keychains, embroidered jackets, and string-back gloves in the showroom—or even pondering another new Porsche—perhaps a Cayenne eHybrid. Porsche Mission E Cross Turismo concept Enlarge Photo Porsche has said that it will deliver the big Mission E sedan by 2020, and have followed with a concept of a Mission E Cross Turismo, which looks a lot like a Panamera Sport Turismo with a 300 mile battery. Dealerships should ha...